I'm close to your Dad's age and fully retired. I certainly would not want a portfolio of individual stocks. A good index equity fund and a good index bond fund would be much better all around. I use Vanguard, but Fidelity is fine too. I've got a 50/50 portfolio, with the equity half divided between SP500 and Total Market, and with the fixed half in intermediate term investment grade (with a little short and high yield, but not too much). Good luck.